Answer:
We don't have sufficient evidence to support the claim
Step-by-step explanation:
Null hypothesis:
![H_0: p = 0.276](https://tex.z-dn.net/?f=H_0%3A%20p%20%3D%200.276)
Alternate hypothesis:
![H_1: p < 0.276](https://tex.z-dn.net/?f=H_1%3A%20p%20%3C%200.276)
The P-value is 0.3064
0.3064 probability of finding a sample proportion lower than the one found.
The p-value is higher than the significance level of 0.05, which means that there is no sufficient evidence to support the claim.
640 x 0.30= 192
640-192= 448
448 is the answer
Let the height of the rectangle = h
2b + 2h = 100
2(38) + 2h = 100
2h = 100 - 76
h = 12mm
area of rectangle = base x height
= 38 x 12
= 456mm²
Let x be the number of square feet to be mowed
215 square feet take 22 minutes
x square feet take 12 minutes